Withdrawn, Document not available for download
Core Supplement
Technical Extra
Subdivided into three sections: NHBC Standards; guidance and good practice; information and support. Covers: NHBC Standards 2014 edition, an introduction to Chapter 3.2 'Mechanical ventilation with heat recovery', information and support.
Withdrawn January 2024. Technical Extra publication replaces Standards Extra and Sustainability Extra.
Formed in 1936, the NHBC is the standard setting body for new and newly converted homes in the UK.
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
We connect trusted knowledge to customers' workflows – mitigating risk, increasing efficiency and accelerating innovation For more than 60 years, leading R&D and engineering-intensive organizations have relied on us to achieve on-time, on-budget delivery of complex projects and new products. We deliver an unparalleled combination of technical content and Artificial Intelligence (AI) technologies to surface answers from the vast universe of technical knowledge, both inside and outside the organization. In a single interface, we connect the dots between information scattered across many different sources, allowing technical professionals to make better, more informed decisions faster.